get_personal_records

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full behavioral burden: it implies a read but never says so explicitly, and gives no information about scope (all-time vs. recent), whether a record includes the date or session that set it, or what happens when no records exist. "By rep count" is the only hint at result shape.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One short, front-loaded sentence with zero filler. It is efficient, though the terseness borders on under-specification rather than true concision.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

No annotations and no output schema, so the description is the only source of behavioral and result-shape information — and it supplies almost none beyond the topic. For a stats-style lookup competing with several similar siblings, this is thin.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0% for the single required parameter, so the description must compensate. It only implies that exercise_id identifies "an exercise" — it does not say whether this is a library exercise ID (as used by get_exercise/search_exercises) or a session-scoped one, nor the ID format.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Names a specific verb and resource ("Personal records") scoped "for an exercise by rep count", which is concrete enough to know what comes back. However, it does not differentiate from nearby siblings such as get_exercise_stats or get_working_max, which plausibly return overlapping strength data.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no statement of when to use this versus get_exercise_stats, get_working_max, or get_workout_history. The agent must guess from names alone which of several strength-related reads to pick.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.